Authentication vs. Authorization in Spring-Social 1.1.X via OAuth2 E.G. Facebook

问题

I'm using Spring Social Release 1.1.4 . I've found this blog post about Authentication not being Authorization.

https://www.scottbrady91.com/OAuth/OAuth-is-Not-Authentication

Then I'm trying to use Authentication to identify a user.

I'd like to in my case identify the user and get the Facebook user id. I don't need the social profile or anything else. How do I do this properly in Spring Social 1.1.4?

来源：https://stackoverflow.com/questions/57899478/authentication-vs-authorization-in-spring-social-1-1-x-via-oauth2-e-g-facebook